Abstract: HDPE porous plum blossom pipe is a kind of plum blossom shaped communication pipe, also known as plum blossom pipe and honeycomb pipe, which is mainly made of PE particles and formed by a unique mold. The inner wall of this pipe is smooth, and it can directly pass through optical cables, saving time. Its structure is reasonable, its use value is high, and its service life is long. It is mainly used as a protective sleeve for communication cables in postal and telecommunications, mobile, China Railway, China Unicom, China Netcom, and radio and television industries. … …